CN110725605A - Method for reinforcing in-service electric pole - Google Patents
Method for reinforcing in-service electric pole Download PDFInfo
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- CN110725605A CN110725605A CN201911047840.2A CN201911047840A CN110725605A CN 110725605 A CN110725605 A CN 110725605A CN 201911047840 A CN201911047840 A CN 201911047840A CN 110725605 A CN110725605 A CN 110725605A
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- electric pole
- reinforcing
- fiber cloth
- frp
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
- E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
Abstract
The invention belongs to the technical field of power transmission equipment. A reinforcing method of an in-service electric pole is characterized in that a reinforcing frame consisting of FRP (fiber reinforced plastic) bars and FRP fiber cloth are adopted to carry out reinforcing construction on the electric pole, wherein the reinforcing frame comprises vertical main bars, inner steel hoops and spiral bars; the inner steel hoop, the vertical main ribs and the spiral ribs are coaxially and sequentially arranged from inside to outside, the inner steel hoop comprises a plurality of vertical main ribs which are sequentially arranged along the length direction of the electric pole, and the vertical main ribs are uniformly distributed along the circumferential direction of the inner wall of the inner steel hoop; the spiral ribs extend spirally along the length direction of the vertical main rib; FRP fiber cloth is adhered to the outer side of the reinforcing steel bar frame; according to the invention, the FRP ribs and the FRP fiber cloth are adopted to reinforce the electric pole, so that new and old structures are restricted with each other, and thus the bearing capacity and rigidity of the in-service electric pole are greatly enhanced.
Description
Technical Field
The invention belongs to the technical field of power transmission equipment, and particularly relates to a method for reinforcing an in-service electric pole.
Background
With the gradual and compact construction of power grids, the working performance of various on-service power transmission lines is directly related to the development of national economy, most of the existing various transmission and distribution power supply lines are erected by concrete poles, and the safety of the existing various transmission and distribution power supply lines is the key for ensuring the normal operation of the power transmission lines. After a certain service life, the electric pole is affected by factors such as environmental erosion, artificial damage and the like, transverse and vertical cracks appear on a plurality of electric poles, the local concrete of the electric pole is cracked, the service life of the electric pole is greatly reduced, the power failure is caused by serious easy-to-occur sudden damage, great inconvenience is brought to production and life of people, and huge property loss and casualty accidents are caused. Fiber Reinforced composite (FRP), CFRP, GFRP, AFRP, BFRP and the like. The FRP composite material is a high-performance material formed by mixing a fiber material and a matrix material (resin) according to a certain proportion. Light weight, hardness, non-conductivity, high mechanical strength, less recovery and corrosion resistance. The FRP rib is a fiber reinforced composite rod-shaped product which is formed by pultrusion of unidirectional continuous fibers and is cured by resin impregnation, and has the advantages of high tensile strength, light weight, corrosion resistance and the like. Therefore, the method for reinforcing the service pole by mixing the FRP ribs and the FRP cloth can better solve the problems of the service pole, improve the durability of the pole and prolong the service life of the pole.
At present, the traditional FRP reinforcement mode mainly comprises an external fiber cloth pasting method and a fiber rib embedding method. The externally-adhered fiber cloth method for reinforcing the member has the advantages of high construction speed, small interference, low manufacturing cost and strong adaptability to the corner of the member. However, the bonding strength between the FRP cloth and the surface of the concrete beam is low by the pure external fiber cloth method, and the FRP cloth is easily corroded by the environment and is easily worn and collided. The FRP bars are embedded into the concrete protective layer in the reinforcing method, so that the reinforcing material can be prevented from being damaged by abrasion and collision, the contact surface area of the FRP bars and the concrete is large, and the fiber utilization rate and the reinforcing efficiency are high. The method has the disadvantages that the concrete protective layer is easy to peel and damage, and the structural adhesive is easy to lose efficacy at high temperature. Therefore, the method for reinforcing the service pole by mixing the FRP ribs and the FRP cloth simultaneously plays the advantages of an external attachment method and a surface embedding method, complements the defects of a single method, and simultaneously replaces structural adhesive with high-strength mortar, thereby effectively avoiding the influence of high temperature on the structural reinforcing part.
Chinese patent CN201410445529.4 discloses a method for reinforcing a cement electric pole by using basalt fiber cloth, wherein the basalt fiber cloth is adopted to reinforce the concrete electric pole, the method has a single reinforcing mode, and simultaneously, the bonding strength of the FRP cloth and the surface of a concrete beam is low, and the FRP cloth is easy to corrode, abrade and collide with the environment. Chinese patent 201410226405.7 discloses a method for repairing and reinforcing a concrete structure in a severe environment, wherein FRP (fiber reinforced plastic) bars and fiber woven meshes are adopted to reinforce the concrete structure, so that the concrete structure has good corrosion resistance, but the method has the disadvantages of increased construction procedures, increased construction difficulty and high construction cost. In addition, chinese patent 201020261312.5 discloses a prestressed FRP reinforced concrete structure, which can effectively improve the rigidity and the bending and shearing resistance of the structure. However, the method has a single reinforcing mode, and the structural adhesive is easy to lose effectiveness at high temperature. At present, no document or patent exists about a method for reinforcing an in-service pole by mixing FRP ribs and FRP fiber cloth.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a method for reinforcing an in-service electric pole.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a reinforcing method of an in-service electric pole is characterized in that a reinforcing frame consisting of FRP (fiber reinforced plastic) bars and FRP fiber cloth are adopted to carry out reinforcing construction on the electric pole, wherein the reinforcing frame comprises vertical main bars, inner steel hoops and spiral bars; the inner steel hoop, the vertical main ribs and the spiral ribs are coaxially and sequentially arranged from inside to outside, the inner steel hoop comprises a plurality of vertical main ribs which are sequentially arranged along the length direction of the electric pole, and the vertical main ribs are uniformly distributed along the circumferential direction of the inner wall of the inner steel hoop; the spiral ribs extend spirally along the length direction of the vertical main rib; and FRP fiber cloth is adhered to the outer side of the reinforcing steel bar frame.
Further, the concrete method for reinforcing the electric pole comprises the following steps:
(1) the concrete layer of the electric pole is provided with a plurality of grooves, the grooves are vertically arranged at equal intervals along the length direction of the electric pole, and impurities on the surface of the electric pole are cleaned after the grooves are formed;
(2) coating structural adhesive on the surface of the groove, embedding the vertical main reinforcement into the groove on the surface of the electric pole, fixing the vertical main reinforcement through the inner steel hoop, wetting the surface of the electric pole with water, uniformly brushing cement slurry on the surface of the electric pole and in the groove, covering and fixing the inner steel hoop and the vertical main reinforcement, flattening the surface of the electric pole, and naturally maintaining for 6-8 days after standing;
(3) cleaning the surface of the cement paste, winding and sticking FRP fiber cloth on the surface of the cement paste in an annular direction by adopting structural adhesive, and rolling for multiple times along the winding direction of the FRP fiber cloth by using a roller to ensure that the structural adhesive is fully soaked in the fiber cloth to squeeze out air bubbles;
(4) spraying high-strength mortar of 5-6mm on the surface of the electric pole stuck with the FRP fiber cloth as a protective layer, and standing for 6-8 days for natural maintenance.
Further, the high-strength mortar is prepared from the following raw materials in parts by weight: 560 parts of Portland cement 540-containing materials, 280 parts of fly ash 260-containing materials, 90-95 parts of silica powder, 72-75 parts of expanding agents, 72-75 parts of quartz sand, 240 parts of water 230-containing materials and 10-12 parts of polycarboxylate superplasticizer.
Furthermore, an included angle between a tangent line of any point on the spiral rib and the horizontal direction is 20-40 degrees; the pitch of the spiral ribs is 50-110 mm.
Further, the inner steel hoop is provided with at least one fastening port, and the fastening port is fastened by using a bolt.
Further, the electric pole is a concrete electric pole with a circular section.
Further, the FRP fiber cloth is CFRP fiber cloth, GFRP fiber cloth, BFRP fiber cloth or AFRP fiber cloth.
Further, the structural adhesive is an epoxy resin structural adhesive.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the method for reinforcing the in-service pole, the steel bar frame formed by the FRP bars and the FRP fiber cloth are constrained at the outer side of the pole body of the in-service pole, so that the bearing capacity of the pole is greatly improved, and the tensile strength and the crack resistance are high. Whole pole cylinder is surrounded by a plurality of vertical main muscle, can rationally control the structural strength of each position of pole cylinder, applys horizontal restraint to the pole cylinder through interior steel hoop, can fix vertical main muscle, can indirectly improve the vertical compressive capacity of pole cylinder again, through setting up the spiral muscle, has strengthened the intensity of pole lateral wall effectively, even receive the striking also difficult damage of receiving, has improved product quality. The FRP fiber cloth is adhered to the inner side and the outer side of the steel bar frame, on one hand, the tensile bearing capacity of the electric pole can be increased due to the fact that the FRP fiber cloth has high tensile strength, the stress and the anti-seismic performance of the electric pole are improved, on the other hand, the durability of the electric pole can be improved due to the corrosion resistance of the FRP fiber cloth, the later maintenance cost is reduced, and after the steel bar frame is fixed, the surface of the electric pole column body is sprayed with the binder slurry for fixing, so that the anti-cracking performance and the rigidity of the electric pole column body are improved; by adopting the method, the in-service pole can be structurally repaired and reinforced, so that the structural performance of the pole cylinder is greatly enhanced, and the existing overall structural engineering is not influenced.
2. The high-strength mortar disclosed by the invention is low in cost, is prepared from portland cement, fly ash, silicon powder, an expanding agent, quartz sand, water and a polycarboxylate superplasticizer, is strong in adhesive force, can form better protection on an electric pole, and has the advantages of good cohesiveness and easiness in coating and scraping.
Drawings
Fig. 1 is a schematic view of the construction of the steel bar frame of the present invention;
fig. 2 is a partial structural schematic diagram of the present invention.
Wherein, labeled in the figures: 1-vertical main reinforcement; 2-inner steel hoop; 3-spiral ribs; 4-FRP fiber cloth; 5-a groove; 6-structural adhesive; 7-cement slurry; 8-high strength mortar.
Detailed Description
The invention is further described with reference to the following figures and examples. It should be noted that the specific embodiments of the present invention are only for clearly describing the technical solutions, and should not be taken as a limitation to the scope of the present invention.
Referring to fig. 1-2, in a method for reinforcing an in-service electric pole, a steel bar frame made of FRP bars and FRP fiber cloth 4 are used to reinforce the electric pole, wherein the steel bar frame includes vertical main bars 1, inner steel hoops 2 and spiral bars 3; the inner steel hoop 2, the vertical main ribs 1 and the spiral ribs 3 are coaxially and sequentially arranged from inside to outside, the inner steel hoop 2 comprises a plurality of vertical main ribs 1, the vertical main ribs are sequentially arranged along the length direction of the electric pole, and the vertical main ribs 1 are uniformly distributed along the circumferential direction of the inner wall of the inner steel hoop 2; the spiral ribs 3 extend spirally along the length direction of the vertical main rib 1; FRP fiber cloth 4 is stuck on the outer side of the reinforcing steel bar frame; the concrete method for reinforcing the electric pole comprises the following steps:
(1) a plurality of grooves 5 are formed in a concrete layer of the electric pole, the grooves 5 are vertically arranged at equal intervals along the length direction of the electric pole, and impurities on the surface of the electric pole are cleaned after the grooves 5 are formed;
(2) coating structural adhesive 6 on the surface of the groove 5, embedding the vertical main reinforcement 1 into the groove 5 on the surface of the electric pole, fixing the vertical main reinforcement through the inner steel hoop 2, wetting the surface of the electric pole with water, uniformly brushing cement slurry 7 on the surface of the electric pole and in the groove 5, covering and fixing the inner steel hoop 2 and the vertical main reinforcement 1, flattening the surface of the electric pole, and naturally maintaining for 6-8 days after standing;
(3) cleaning the surface of the cement paste 7, adopting the structural adhesive 6 to wind and adhere the FRP fiber cloth 4 to the surface of the cement paste 7 in the circumferential direction, and rolling for multiple times along the winding direction of the FRP fiber cloth 4 by using a roller to ensure that the structural adhesive 6 is fully soaked in the fiber cloth to squeeze out air bubbles;
(4) spraying high-strength mortar 8 with the thickness of 5-6mm on the surface of the electric pole with the FRP fiber cloth 4 stuck thereon as a protective layer, and standing for 6-8 days for natural maintenance.
According to the method for reinforcing the in-service pole, the steel bar frame formed by the FRP bars and the FRP fiber cloth 4 are constrained at the outer side of the pole body of the in-service pole, so that the bearing capacity of the pole is greatly improved, and the tensile strength and the crack resistance are high. Whole pole cylinder is surrounded by a plurality of vertical main muscle 1, can rationally control the structural strength of each position of pole cylinder, applys horizontal restraint to the pole cylinder through interior ferrule 2, can fix vertical main muscle 1, can improve the vertical compressive capacity of pole cylinder again indirectly, through setting up spiral muscle 3, has strengthened the intensity of pole lateral wall effectively, even receive the striking also difficult damage that receives, has improved product quality. The FRP fiber cloth 4 is adhered to the inner side and the outer side of the steel bar frame, on one hand, the tensile bearing capacity of the electric pole can be increased due to the strong tensile strength of the FRP fiber cloth 4, the stress and the anti-seismic performance of the electric pole are improved, on the other hand, the durability of the electric pole can be improved due to the corrosion resistance of the FRP fiber cloth 4, the later maintenance cost is reduced, and after the steel bar frame is fixed, the surface of the electric pole column body is sprayed with binder slurry for fixing, so that the anti-cracking performance and the rigidity of the electric pole column body are improved; by adopting the method, the in-service pole can be structurally repaired and reinforced, so that the structural performance of the pole cylinder is greatly enhanced, and the existing overall structural engineering is not influenced.
The high-strength mortar 8 is prepared from the following raw materials in parts by weight: 560 parts of Portland cement 540-containing materials, 280 parts of fly ash 260-containing materials, 90-95 parts of silica powder, 72-75 parts of expanding agents, 72-75 parts of quartz sand, 240 parts of water 230-containing materials and 10-12 parts of polycarboxylate superplasticizer. The swelling agent may be a calcium aluminate swelling agent. The high-strength mortar 8 disclosed by the invention is strong in adhesive force, can form better protection on an electric pole, and has the advantages of good cohesiveness and easiness in coating and scraping.
The included angle between the tangent line of any point on the spiral rib 3 and the horizontal direction is 20-40 degrees; the distance between the spiral ribs 3 is 50-110 mm. The screw thread interval of the spiral rib 3 is smaller, so that the whole stress of the electric pole is more uniform, and the bearing capacity of the side wall of the electric pole is improved
Compared with the prior reinforcing method, the reinforcing steel bar frame formed by the FRP bars and the FRP fiber cloth 4 are adopted to jointly reinforce the service pole, the reinforcing effect is stronger by combining the advantages of the FRP bars and the FRP fiber cloth 4, the defects of low strength, easy weathering and the like are effectively prevented, and the construction is convenient.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.
Claims (8)
1. A method for reinforcing an in-service electric pole is characterized by comprising the following steps: reinforcing construction is carried out on the electric pole by adopting a reinforcing frame consisting of FRP bars and FRP fiber cloth, wherein the reinforcing frame comprises vertical main bars, inner steel hoops and spiral bars; the inner steel hoop, the vertical main ribs and the spiral ribs are coaxially and sequentially arranged from inside to outside, the inner steel hoop comprises a plurality of vertical main ribs which are sequentially arranged along the length direction of the electric pole, and the vertical main ribs are uniformly distributed along the circumferential direction of the inner wall of the inner steel hoop; the spiral ribs extend spirally along the length direction of the vertical main rib; and FRP fiber cloth is adhered to the outer side of the reinforcing steel bar frame.
2. The method for reinforcing an in-service electric pole as recited in claim 1, wherein: the concrete method for reinforcing the electric pole comprises the following steps:
(1) the concrete layer of the electric pole is provided with a plurality of grooves, the grooves are vertically arranged at equal intervals along the length direction of the electric pole, and impurities on the surface of the electric pole are cleaned after the grooves are formed;
(2) coating structural adhesive on the surface of the groove, embedding the vertical main reinforcement into the groove on the surface of the electric pole, fixing the vertical main reinforcement through the inner steel hoop, wetting the surface of the electric pole with water, uniformly brushing cement slurry on the surface of the electric pole and in the groove, covering and fixing the inner steel hoop and the vertical main reinforcement, flattening the surface of the electric pole, and naturally maintaining for 6-8 days after standing;
(3) cleaning the surface of the cement paste, winding and sticking FRP fiber cloth on the surface of the cement paste in an annular direction by adopting structural adhesive, and rolling for multiple times along the winding direction of the FRP fiber cloth by using a roller to ensure that the structural adhesive is fully soaked in the fiber cloth to squeeze out air bubbles;
(4) spraying high-strength mortar of 5-6mm on the surface of the electric pole stuck with the FRP fiber cloth as a protective layer, and standing for 6-8 days for natural maintenance.
3. The method for reinforcing an in-service electric pole as recited in claim 1, wherein: the high-strength mortar is prepared from the following raw materials in parts by weight: 560 parts of Portland cement 540-containing materials, 280 parts of fly ash 260-containing materials, 90-95 parts of silica powder, 72-75 parts of expanding agents, 72-75 parts of quartz sand, 240 parts of water 230-containing materials and 10-12 parts of polycarboxylate superplasticizer.
4. The method for reinforcing an in-service electric pole as recited in claim 1, wherein: the included angle between the tangent line of any point on the spiral rib and the horizontal direction is 20-40 degrees; the pitch of the spiral ribs is 50-110 mm.
5. The method for reinforcing an in-service electric pole as recited in claim 1, wherein: the inner steel hoop is provided with at least one fastening port, and the fastening port is fastened by adopting a bolt.
6. The method for reinforcing an in-service electric pole as recited in claim 1, wherein: the pole is a concrete pole with a circular section.
7. The method for reinforcing an in-service electric pole as recited in claim 1, wherein: the FRP fiber cloth is CFRP fiber cloth, GFRP fiber cloth, BFRP fiber cloth or AFRP fiber cloth.
8. The method for reinforcing an in-service electric pole as recited in claim 1, wherein: the structural adhesive is an epoxy resin structural adhesive.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911047840.2A CN110725605A (en) | 2019-10-30 | 2019-10-30 | Method for reinforcing in-service electric pole |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911047840.2A CN110725605A (en) | 2019-10-30 | 2019-10-30 | Method for reinforcing in-service electric pole |
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| CN110725605A true CN110725605A (en) | 2020-01-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744698A (en) * | 2019-10-30 | 2020-02-04 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Manufacturing method of CFRP (carbon fiber reinforced plastics) concrete electric pole |
| WO2023249566A1 (en) * | 2022-06-24 | 2023-12-28 | Chainarong Jongkon | Concrete electricity pole structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004026552A (en) * | 2002-06-25 | 2004-01-29 | Taiheiyo Cement Corp | Method for reinforcing telegraph pole made of concrete |
| CN101748901A (en) * | 2009-12-29 | 2010-06-23 | 江苏省电力试验研究院有限公司 | Annular concrete pole reinforcing method for in-service substation |
| CN103993752A (en) * | 2014-05-26 | 2014-08-20 | 中国矿业大学 | Method for repairing and reinforcing concrete structure under severe environment |
| CN209114957U (en) * | 2018-07-13 | 2019-07-16 | 魏金河 | A kind of partial prestressing taper mutation steel fibre concrete electric pole and its foundation construction structure |
-
2019
- 2019-10-30 CN CN201911047840.2A patent/CN110725605A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004026552A (en) * | 2002-06-25 | 2004-01-29 | Taiheiyo Cement Corp | Method for reinforcing telegraph pole made of concrete |
| CN101748901A (en) * | 2009-12-29 | 2010-06-23 | 江苏省电力试验研究院有限公司 | Annular concrete pole reinforcing method for in-service substation |
| CN103993752A (en) * | 2014-05-26 | 2014-08-20 | 中国矿业大学 | Method for repairing and reinforcing concrete structure under severe environment |
| CN209114957U (en) * | 2018-07-13 | 2019-07-16 | 魏金河 | A kind of partial prestressing taper mutation steel fibre concrete electric pole and its foundation construction structure |
Non-Patent Citations (1)
| Title |
|---|
| 孙亚平 陆钟华: "220KV澄子变损坏混凝土电杆加固技术", 《广东科技》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744698A (en) * | 2019-10-30 | 2020-02-04 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Manufacturing method of CFRP (carbon fiber reinforced plastics) concrete electric pole |
| CN110744698B (en) * | 2019-10-30 | 2021-04-13 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Manufacturing method of CFRP (carbon fiber reinforced plastics) concrete electric pole |
| WO2023249566A1 (en) * | 2022-06-24 | 2023-12-28 | Chainarong Jongkon | Concrete electricity pole structure |
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Application publication date: 20200124 |